A segment is divided into two parts following the rules of the golden ratio. How long is the longer part when the shorter part is

a) [[$ 3.8 $]] cm?



Answer: The longer part is cm.

b) [[$ 14.0 $]] cm?



Answer: The longer part is cm.

c) [[$ 21.7 $]] cm?



Answer: The longer part is cm.

d) [[$ 86.0 $]] cm?



Answer: The longer part is cm.